eprintid: 10094
rev_number: 9
eprint_status: archive
userid: 1305
dir: disk0/00/01/00/94
datestamp: 2017-07-17 08:50:10
lastmod: 2017-07-17 08:50:10
status_changed: 2017-07-17 08:50:10
type: article
metadata_visibility: show
creators_name: Rai, K N
creators_name: Govindaraj, M
creators_name: Kanatti, A
creators_name: Rao, A S
creators_name: Shivade, H
icrisatcreators_name: Rai, K N
icrisatcreators_name: Govindaraj, M
icrisatcreators_name: Kanatti, A
icrisatcreators_name: Rao, A S
icrisatcreators_name: Shivade, H
affiliation: ICRISAT (Patancheru)
title: Inbreeding Effects on Grain Iron and Zinc Concentrations in Pearl Millet
ispublished: pub
subjects: PLB1
subjects: S1.5.1
divisions: CRPS2
crps: crp1.15
full_text_status: public
keywords: Grain Iron, Zinc Concentrations, Pearl Millet, Inbreeding effects
note: This study was undertaken with funding support from the HarvestPlus Challenge Program of the CGIAR Research Program on Agriculture for Nutrition and Health (A4NH).
abstract: The magnitude, direction, and pattern of inbreeding effects on trait expression in selfing generations have a direct bearing on single-plant and progeny-based selection efficiency. In the present study on a pearl millet [Pennisetum glaucum (L.) R. Br.] biofortification initiative, initial random mated S0 bulks of three diverse composites and their S1 to S4 population bulks derived from four generations of selfing were evaluated for 2 yr under irrigated and terminal drought stress for iron (Fe) and zinc (Zn) concentrations. Both Fe and Zn concentrations were higher under terminal drought than under irrigated condition. Inbreeding had no significant effect on Fe and Zn concentrations in one composite and showed significant though marginal increase of both micronutrients in two composites. This finding, not unexpected, was in conformity with the earlier reports of predominantly additive gene effects and marginal partial dominance of genes determining low concentrations of these micronutrients observed in a low frequency of hybrids. The patterns of genetic changes in Fe concentration due to inbreeding were highly significantly and positively correlated with those in Zn concentration in all three composites. These results indicate that simultaneous single-plant and progeny-based early generation selection for Fe and Zn concentrations is likely to be effective to enhance the breeding efficiency for these micronutrients in pearl millet.
date: 2017
date_type: published
publication: Crop Science
volume: 57
publisher: Crop Science Society of America, Inc
pagerange: 1-8
id_number: 10.2135/cropsci2016.07.0609
refereed: TRUE
issn: 0011-183X
official_url: http://dx.doi.org/10.2135/cropsci2016.07.0609
related_url_url: https://scholar.google.co.in/scholar?hl=en&q=Inbreeding+Effects+on+Grain+Iron+and+Zinc+Concentrations+in+Pearl+Millet&btnG=
related_url_type: pub
funders: HarvestPlus Challenge Program of the CGIAR Research Program on Agriculture for Nutrition and Health (A4NH)
citation:   Rai, K N and Govindaraj, M and Kanatti, A and Rao, A S and Shivade, H  (2017) Inbreeding Effects on Grain Iron and Zinc Concentrations in Pearl Millet.  Crop Science, 57.  pp. 1-8.  ISSN 0011-183X     
document_url: http://oar.icrisat.org/10094/1/cs-0-0-cropsci2016.07.0609.pdf